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2231230230 = 2325192356731
BaseRepresentation
bin1000010011111101…
…1101111100010110
312202111110020110200
42010333131330112
514032143331410
61005223001330
7106202100255
oct20477357426
95674406420
102231230230
11a45520329
12523299246
13297347598
1417248a79c
15d0d3a3c0
hex84fddf16

2231230230 has 96 divisors (see below), whose sum is σ = 6372138240. Its totient is φ = 539161920.

The previous prime is 2231230219. The next prime is 2231230237. The reversal of 2231230230 is 320321322.

It is a happy number.

2231230230 is a `hidden beast` number, since 22 + 312 + 302 + 30 = 666.

It is a super-3 number, since 3×22312302303 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231230237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10965 + ... + 67695.

It is an arithmetic number, because the mean of its divisors is an integer number (66376440).

Almost surely, 22231230230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231230230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3186069120).

2231230230 is an abundant number, since it is smaller than the sum of its proper divisors (4140908010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231230230 is a wasteful number, since it uses less digits than its factorization.

2231230230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56786 (or 56783 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2231230230 is about 47235.8998008930. The cubic root of 2231230230 is about 1306.7167611325.

Adding to 2231230230 its reverse (320321322), we get a palindrome (2551551552).

The spelling of 2231230230 in words is "two billion, two hundred thirty-one million, two hundred thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 23 30 38 45 46 57 69 90 95 114 115 138 171 190 207 230 285 342 345 414 437 570 690 855 874 1035 1311 1710 2070 2185 2622 3933 4370 6555 7866 13110 19665 39330 56731 113462 170193 283655 340386 510579 567310 850965 1021158 1077889 1304813 1701930 2155778 2552895 2609626 3233667 3914439 5105790 5389445 6467334 6524065 7828878 9701001 10778890 11743317 13048130 16168335 19402002 19572195 23486634 24791447 32336670 39144390 48505005 49582894 58716585 74374341 97010010 117433170 123957235 148748682 223123023 247914470 371871705 446246046 743743410 1115615115 2231230230